black lace rust slate


stone image | specifications | finishes | applications | projects
Black Lace Rust Slate is a rare stone used for interior and exterior applications. Because of its excellent properties and performance, unique range of earth tone colors and rich texture, architects specify this natural slate for interior slate flooring, exterior paving stone, fireplace surrounds, stair treads and stone wall cladding. Black Lace Rust Slate is available in a natural cleft finish.

stone type



Wide range of earth tones with reflectivity. Natural markings occur.

weathering characteristic

“Semi-weathering”, meaning that some pieces change color when used outside and others do not. (Black Lace Rust's weathering characteristic is an aesthetic consideration and does not adversely affect its performance or durability).


Relatively even cleft, durable, low absorption rate, resistant to freeze-thaw cycles. Slip-, stain-, and heat-resistant. No detrimental effects on the environment.


interior, exterior


Depending on the application, an impregnating sealer may be required. Contact us for information regarding the use of sealers, impregnators, oiling, cleaning, etc.


upon request

ASTM results

upon request


stone image | specifications | finishes | applications | projects
Natural Cleft Finish
Natural Cleft Finish

Finishes Descriptions

Natural Cleft - a textured, natural finish both visually and to the touch. Achieved by splitting the stone along its cleave with a hammer and chisel.